AP301-FULL-HD_rev.09_UK
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4.
INSTRUCTIONS FOR USE
The field strength meter may be powered in three modes:
1)
From the AC mains network by means of an external power supply. The power supply
accepts mains voltage ratings of 90V to 260 V. The protection fuses are internal and are
not accessible.
⇒
NOTE:
In the event that any of these fuses should burn out, do not attempt to replace
them: send the power supply to the manufacturer's assistance centre for testing.
Insert the power cable into the
DC
power supply’s input connector. The
Ch
indicator on
the front panel will light up, indicating that the device is receiving power and the battery
is charging. The indicator light will be either green or red, indicating one of the following
conditions:
Green = battery charge complete
Red = battery charging
Flashing Red = battery charging procedure reduced or suspended due to an extremely
low battery charge or temperature.
In this situation, the device is receiving electrical power and is waiting to be turned on
(Stand-By).
2)
From the battery.
3)
By means of an external Vdc power source, between 11.5V and 15V, capable of
providing at least 3 A (using the same input as that which is used for the external power
supply).
4.1.
TURNING THE DEVICE ON/OFF
Press the
button to turn the instrument on. In order to shut the device off, hold the
same button down for a few seconds.
This procedure ensures that the data saved during the work session will remain in the unit’s
non-volatile memory and that the device will return to the same operating mode when
turned back on.
4.2.
USE OF BATTERY
If the supplied external DC is enough, the instrument automatically recharges its internal
battery, when it is on stand-by mode.
Some important notes about the use of batteries:
•
It is recommended to recharge the battery when the instrument is new
•
When the battery is almost totally flat, before the instrument is unserviceable the battery
icon on the upper left side of the screen becomes red. In this case it is recommended to
stop using the instrument as soon as possible and recharge its battery. If you persist in
using it (5 ÷10 minutes max), the instrument switches off.
•
When the instrument remains unoperational for long, it is suggested to recharge the
battery at least once a month, in order to offset the auto-discharge.
•
It is recommended to switch on the instrument at least once a month, and keep it
switched on a few hours to recharge the battery of its internal clock.
